John Cusack's disaster movie 2012 is anything but in China - it has become the nation's biggest-grossing film ever.The end-of-the-world epic had raked in $67.3 million (GBP42 million) in China as of 23 December (09), according to national estimates, eclipsing the previous record set by Transformers: Revenge of the Fallen. Chinese propaganda movie The Founding of a Republic is third on China's movie hit list.